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вернуться в форумПоказать все сообщения Спрятать все сообщенияMy program works fine in console, but for some reason I get wrong answer on test 9. Could someone point out where is the problem in my code?
#include <iostream>
#include <vector>
#include <math.h>
#include <iomanip>
using namespace std;
int main()
{
double num;
vector<long long> input;
int limit = 256 * 1024 / sizeof(long long);
for (int k = 0; (cin >> num) && k <= limit; k++)
{
if (num != (long long)num || num < 0 || num > pow(10.0, 18))
return 0;
input.push_back((long long)num);
}
for (int i = input.size() - 1; i >= 0; i--)
cout << fixed << setprecision(4) << sqrt(input[i]) << endl;
return 0;
}
Edited by author 28.03.2016 23:17
Edited by author 28.03.2016 23:18
Edited by author 28.03.2016 23:18 Limit is wrong. Min number size is 2 bytes - "1 ".
In common, you shouldn't check if input is correct. It's supposed to be always correct.
Reading like:
while (cin >> number) {
input.push_back(number);
}
should be enough.
If you want to check input (for lulz?) you should fail your program in more visible way - via return not 0, throw something etc. Judge system will return another error, not WA.
Edited by author 28.03.2016 23:43 Another note.
You read number into double, convert it into long long, convert it back to double and finally call sqrt.
Why do you need 2 conversions in the middle?
Shouldn't you better use vector<double> input? Sorry for stupid question: what is WA? |
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